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From: Mark B. <mj...@ea...> - 2019-12-27 01:48:50
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hello I use the subject driver, installed via CUPS, for my HP Laserjet 4 printer. I can find no way to reduce the density of print using the applicable settings via CUPS system settings, and verifying or setting the applicable settings in the software, in this case, Libreoffice in Ubuntu Linux. All combinations of settings print dark characters. Is there any possibility that the driver can be revisited to make it more compatible to the Laserjet 4? Atch are two views showning the settings made. Thanks mark bower arcadia, CA, USA |
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From: Robert K. <rl...@al...> - 2019-12-27 02:42:24
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On Thu, 26 Dec 2019 17:48:39 -0800, Mark Bower wrote: > hello > > I use the subject driver, installed via CUPS, for my HP Laserjet 4 > printer. I can find no way to reduce the density of print using the > applicable settings via CUPS system settings, and verifying or > setting the applicable settings in the software, in this case, > Libreoffice in Ubuntu Linux. All combinations of settings print > dark characters. > > Is there any possibility that the driver can be revisited to make it > more compatible to the Laserjet 4? > > Atch are two views showning the settings made. I take it you're trying to print light-colored text as a light gray or the like? You have Print Quality set to Draft -- what happens if you set it to standard, and resolution to 300 DPI? -- Robert Krawitz <rl...@al...> *** MIT Engineers A Proud Tradition http://mitathletics.com *** Member of the League for Programming Freedom -- http://ProgFree.org Project lead for Gutenprint -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton |
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From: Robert K. <rl...@al...> - 2019-12-27 03:05:40
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Please reply-all or reply-list to allow others to participate in the discussion. On Thu, 26 Dec 2019 18:55:47 -0800, Mark Bower wrote: > unfortunately, that will not help. i have gone through many, many > combinations. i believe in the past, that i was able to lighten, > but then, we are talking use of the printer for almost 30 years, and > starting with Windows. and yes, i simply want to lighten the print > to save toner. To save toner -- so you want to print black text lighter. What happens if you actually lighten the text in the source document? Does it then print lighter? -- Robert Krawitz <rl...@al...> *** MIT Engineers A Proud Tradition http://mitathletics.com *** Member of the League for Programming Freedom -- http://ProgFree.org Project lead for Gutenprint -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton |
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From: Mark B. <mj...@ea...> - 2019-12-27 03:32:50
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originally i wrote: hello I use the subject driver, installed via CUPS, for my HP Laserjet 4 printer. I can find no way to reduce the density of print using the applicable settings via CUPS system settings, and verifying or setting the applicable settings in the software, in this case, Libreoffice in Ubuntu Linux. All combinations of settings print dark characters. On 12/26/19 7:05 PM, Robert Krawitz wrote: > Please reply-all or reply-list to allow others to participate in the > discussion. > > On Thu, 26 Dec 2019 18:55:47 -0800, Mark Bower wrote: >> unfortunately, that will not help. i have gone through many, many >> combinations. i believe in the past, that i was able to lighten, >> but then, we are talking use of the printer for almost 30 years, and >> starting with Windows. and yes, i simply want to lighten the print >> to save toner. > To save toner -- so you want to print black text lighter. > > What happens if you actually lighten the text in the source document? > Does it then print lighter? |
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From: Robert K. <rl...@al...> - 2019-12-27 03:34:43
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On Thu, 26 Dec 2019 19:32:39 -0800, Mark Bower wrote: > > originally i wrote: > > hello > > I use the subject driver, installed via CUPS, for my HP Laserjet 4 > printer. I can find no way to reduce the density of print using the > applicable settings via CUPS system settings, and verifying or > setting the applicable settings in the software, in this case, > Libreoffice in Ubuntu Linux. All combinations of settings print > dark characters. What happens if your characters in the original document are, say, yellow or pale green? Do they still print black? > On 12/26/19 7:05 PM, Robert Krawitz wrote: >> Please reply-all or reply-list to allow others to participate in the >> discussion. >> >> On Thu, 26 Dec 2019 18:55:47 -0800, Mark Bower wrote: >>> unfortunately, that will not help. i have gone through many, many >>> combinations. i believe in the past, that i was able to lighten, >>> but then, we are talking use of the printer for almost 30 years, and >>> starting with Windows. and yes, i simply want to lighten the print >>> to save toner. >> To save toner -- so you want to print black text lighter. >> >> What happens if you actually lighten the text in the source document? >> Does it then print lighter? -- Robert Krawitz <rl...@al...> *** MIT Engineers A Proud Tradition http://mitathletics.com *** Member of the League for Programming Freedom -- http://ProgFree.org Project lead for Gutenprint -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton |
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From: Mark B. <mj...@ea...> - 2019-12-27 04:04:44
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in my opener, i stated "setting applicable settings in the software" - maybe better had i said also make settings in source document which is printed from libreoffice. tomorrow, i will try your suggestion of changing the color and see what happens, but i believe in one of the pop-ups to make the settings i believe monochrome is stated which i believe drives only black? On 12/26/19 7:34 PM, Robert Krawitz wrote: > On Thu, 26 Dec 2019 19:32:39 -0800, Mark Bower wrote: >> originally i wrote: >> >> hello >> >> I use the subject driver, installed via CUPS, for my HP Laserjet 4 >> printer. I can find no way to reduce the density of print using the >> applicable settings via CUPS system settings, and verifying or >> setting the applicable settings in the software, in this case, >> Libreoffice in Ubuntu Linux. All combinations of settings print >> dark characters. > What happens if your characters in the original document are, say, > yellow or pale green? Do they still print black? > >> On 12/26/19 7:05 PM, Robert Krawitz wrote: >>> Please reply-all or reply-list to allow others to participate in the >>> discussion. >>> >>> On Thu, 26 Dec 2019 18:55:47 -0800, Mark Bower wrote: >>>> unfortunately, that will not help. i have gone through many, many >>>> combinations. i believe in the past, that i was able to lighten, >>>> but then, we are talking use of the printer for almost 30 years, and >>>> starting with Windows. and yes, i simply want to lighten the print >>>> to save toner. >>> To save toner -- so you want to print black text lighter. >>> >>> What happens if you actually lighten the text in the source document? >>> Does it then print lighter? |
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From: Robert K. <rl...@al...> - 2019-12-27 15:20:26
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On Thu, 26 Dec 2019 20:04:35 -0800, Mark Bower wrote: > in my opener, i stated "setting applicable settings in the software" - maybe better had i said also make settings in source document which is printed from libreoffice. > > tomorrow, i will try your suggestion of changing the color and see what happens, but i believe in one of the pop-ups to make the settings i believe monochrome is stated which i believe drives only black? BTW, your screenshots don't look like they contain everything. In particular, there should be a setting named Color Correction under Output Control Common. Could you check what that's set to, please? -- Robert Krawitz <rl...@al...> *** MIT Engineers A Proud Tradition http://mitathletics.com *** Member of the League for Programming Freedom -- http://ProgFree.org Project lead for Gutenprint -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton |
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From: Mark B. <mj...@ea...> - 2019-12-28 03:20:39
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Summary/Overview of Findings - Drop to Bottom to see Solution A. Printing a test page from the printer test menu produces only dark prints. (printer settings given below) B. Printing a test page as a system test by accessing the CUPS pop-up, the only change effected was going from 300dpi to 150dpi, in which case the graphic images lightened slightly. C. In ACAD 2000, the plot(print) selection allows settings for something listed as “Screening 25%,50%,75%,100%. Going from 25% to 100% correlates to a light print to dark print. This is the behavior desired. D. Setting the printer settings within Libreoffice to match the system settings used in “B” does produces only a dark print. *Laserjet Settings* (permanent, but can be overridden by cmds sent to the printer as I understand it) Print Menu: RET Light Job Menu: resolution 300x300dpi Config Menu: Density = 1 (1 to 5 range) *Computer System Settings* (CUPS + Gutenprint v5.2.11) Color Model: Grayscale (Grayscale or Inverted Grayscale) Color Precision: Normal Print Quality: Draft (Manual Control, Draft, Standard, High) Resolution: 300 x 300dpi (150,300,600) Color Correction: Density (Default,High Accuracy, Bright Colors, Correct Hue Only, Uncorrected) Density: 1.000 (.100 to 8.00, none) *Libreoffice Settings * same as Computer System Settings So in general, it would seem that Libreoffice (as well as the printer test prints themselves not responding to the low density setting of 1) does not cooperate (while ACAD responds as expected). But when you requested what is the setting for Color Correction, for whatever reason I went to Libreoffice help, and in that section grayscale was listed, so went to the grayscale discussion and found that I could set levels of grayscale, voila! The path is Tools>Options>Libreoffice>Colors>[edit color]. It shows color and grayscale choices for fonts; my grayscale choice of 5 works, produces a lighter print. While I have never done it, I believe it is a simple matter to set up a page in Libreoffice with the grayscale parameter and save the page as a default opening page. Thank you for hanging in with me and taking an interest. Happy New Year mark bower On 12/27/19 7:20 AM, Robert Krawitz wrote: > On Thu, 26 Dec 2019 20:04:35 -0800, Mark Bower wrote: >> in my opener, i stated "setting applicable settings in the software" - maybe better had i said also make settings in source document which is printed from libreoffice. >> >> tomorrow, i will try your suggestion of changing the color and see what happens, but i believe in one of the pop-ups to make the settings i believe monochrome is stated which i believe drives only black? > BTW, your screenshots don't look like they contain everything. In > particular, there should be a setting named Color Correction under > Output Control Common. Could you check what that's set to, please? |
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From: Robert K. <rl...@al...> - 2019-12-28 14:42:30
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On Fri, 27 Dec 2019 19:20:30 -0800, Mark Bower wrote: > Summary/Overview of Findings - Drop to Bottom to see Solution > > A. Printing a test page from the printer test menu produces only dark prints. (printer settings given below) > > B. Printing a test page as a system test by accessing the CUPS pop-up, the only change effected was going from 300dpi to 150dpi, in which case the graphic images lightened slightly. > > C. In ACAD 2000, the plot(print) selection allows settings for something listed as “Screening 25%,50%,75%,100%. Going from 25% to 100% correlates to a light print to dark print. This is the behavior desired. > > D. Setting the printer settings within Libreoffice to match the system settings used in “B” does produces only a dark print. > > > *Laserjet Settings* (permanent, but can be overridden by cmds sent to the printer as I understand it) > > Print Menu: RET Light Job Menu: resolution 300x300dpi Config Menu: Density = 1 (1 to 5 range) > > > *Computer System Settings* (CUPS + Gutenprint v5.2.11) > > Color Model: Grayscale (Grayscale or Inverted Grayscale) > > Color Precision: Normal > > Print Quality: Draft (Manual Control, Draft, Standard, High) > > Resolution: 300 x 300dpi (150,300,600) > > Color Correction: Density (Default,High Accuracy, Bright Colors, Correct Hue Only, Uncorrected) > > Density: 1.000 (.100 to 8.00, none) > > > *Libreoffice Settings * > > same as Computer System Settings > > So in general, it would seem that Libreoffice (as well as the printer test prints themselves not responding to the low density setting of 1) does not cooperate (while ACAD responds as expected). But when you requested what is the setting for Color Correction, for whatever reason I went to Libreoffice help, and in that section grayscale was listed, so went to the grayscale discussion and found that I could set levels of grayscale, voila! The path is Tools>Options>Libreoffice>Colors>[edit color]. It shows color and grayscale choices for fonts; my grayscale choice of 5 works, produces a lighter print. While I have never done it, I believe it is a simple matter to set up a page in Libreoffice with the grayscale parameter and save the page as a default opening page. > > Thank you for hanging in with me and taking an interest. So I don't quite understand exactly what that final test (that worked) involved. Was it only changes to LibreOffice settings, or was it also a change to Gutenprint settings? If you changed both, can you try just one at a time to see if you needed to change both or only one (and if so, which one)? -- Robert Krawitz <rl...@al...> *** MIT Engineers A Proud Tradition http://mitathletics.com *** Member of the League for Programming Freedom -- http://ProgFree.org Project lead for Gutenprint -- http://gimp-print.sourceforge.net "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton |
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From: Mark B. <mj...@ea...> - 2019-12-28 15:23:50
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Indeed, I was not clear. I left all printer settings, and the CUP + Gutenprint settings to what should produce light prints. IE, density settings left at their lowest setting and a RET setting on the printer which I believe should also influence a light print. The settings made in Libreoffice either reflected or I made them to match the system settings. But after your suggestion of color, I applied via Libreoffice a grayscale setting to the font and this was the first, very observable change in printed density, from dark to very light. For this to be practical, I need to set up a default opening page in Libreoffice which incorporates the grayscale of choice, and apparently ignore density settings. I believe that I am correct in stating that setting the grayscale in Libreoffice is really a work around for some other problem, and not Gutenprint's. I say that because as I noted previously, I could not get light pages to print either from the printer's own test program or from the system test program with a low density setting (1 on a scale of 1 to 5). I would think that one of those methods would have produced a light print. And for what ever reason, ACAD conveniently can be set to produce 4 different print density outputs? mark On 12/28/19 6:42 AM, Robert Krawitz wrote: > On Fri, 27 Dec 2019 19:20:30 -0800, Mark Bower wrote: >> Summary/Overview of Findings - Drop to Bottom to see Solution >> >> A. Printing a test page from the printer test menu produces only dark prints. (printer settings given below) >> >> B. Printing a test page as a system test by accessing the CUPS pop-up, the only change effected was going from 300dpi to 150dpi, in which case the graphic images lightened slightly. >> >> C. In ACAD 2000, the plot(print) selection allows settings for something listed as “Screening 25%,50%,75%,100%. Going from 25% to 100% correlates to a light print to dark print. This is the behavior desired. >> >> D. Setting the printer settings within Libreoffice to match the system settings used in “B” does produces only a dark print. >> >> >> *Laserjet Settings* (permanent, but can be overridden by cmds sent to the printer as I understand it) >> >> Print Menu: RET Light Job Menu: resolution 300x300dpi Config Menu: Density = 1 (1 to 5 range) >> >> >> *Computer System Settings* (CUPS + Gutenprint v5.2.11) >> >> Color Model: Grayscale (Grayscale or Inverted Grayscale) >> >> Color Precision: Normal >> >> Print Quality: Draft (Manual Control, Draft, Standard, High) >> >> Resolution: 300 x 300dpi (150,300,600) >> >> Color Correction: Density (Default,High Accuracy, Bright Colors, Correct Hue Only, Uncorrected) >> >> Density: 1.000 (.100 to 8.00, none) >> >> >> *Libreoffice Settings * >> >> same as Computer System Settings >> >> So in general, it would seem that Libreoffice (as well as the printer test prints themselves not responding to the low density setting of 1) does not cooperate (while ACAD responds as expected). But when you requested what is the setting for Color Correction, for whatever reason I went to Libreoffice help, and in that section grayscale was listed, so went to the grayscale discussion and found that I could set levels of grayscale, voila! The path is Tools>Options>Libreoffice>Colors>[edit color]. It shows color and grayscale choices for fonts; my grayscale choice of 5 works, produces a lighter print. While I have never done it, I believe it is a simple matter to set up a page in Libreoffice with the grayscale parameter and save the page as a default opening page. >> >> Thank you for hanging in with me and taking an interest. > So I don't quite understand exactly what that final test (that worked) > involved. Was it only changes to LibreOffice settings, or was it also > a change to Gutenprint settings? If you changed both, can you try > just one at a time to see if you needed to change both or only one > (and if so, which one)? |
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